Microsoft have released details on their Xbox Fanfest that will take place from June 11-13. The biggest news of them all is that attendees will be able to play some upcoming Microsoft games and hardware including Project Scorpio. Attendees to the E3 briefing on June 11 will receive a “custom-built backpack full of gaming swag,” and gain access to Project Scorpio.

The big catch is there will only be 500 spots available with 400 of them will be available on a “first-come, first-serve” basis starting Wednesday. The other 100 tickets will be given out in undisclosed promotions and giveaways leading up to the Fanfest.